{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6220-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6220-6","canonicalUrl":"https://aoctrl.com/siemens/5SL6220-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6220-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6220-6, 2-pole miniature circuit breaker, B tripping characteristic, 20 A rated current, 6 kA breaking capacity, 2 MW units.","salesMarkdown":"The Siemens 5SL6220-6 is a SENTRON 2-pole miniature circuit breaker (MCB) with a B tripping characteristic, rated at 20 A and a 6 kA breaking capacity per both EN 60898 and IEC 60947-2. It occupies 2 modular width units on a DIN rail, with a 36 mm width, 76 mm depth, and 90 mm height — the standard footprint for a 2-pole MCB in a residential or light-commercial distribution board. ## Thermal derating and installation constraints Rated current holds at 20 A up to 30 °C ambient. At 40 °C it derates to 18.79 A, at 45 °C to 18.4 A, and at 55 °C to 16.8 A — a roughly 16% drop from nameplate to the top of the operating range. The MCB carries IP20 protection with connected conductors, so it belongs inside a closed enclosure, not in a washdown or outdoor location. Mounting position is unrestricted, which simplifies layout in crowded panels. The unit is sealable and halogen-free, silicon-free — relevant for clean-room or sensitive-environment installs where outgassing matters. That 6 kA rating places it in the standard-duty range for final subcircuits in residential and small commercial boards. If your fault-current study shows more than 6 kA available at the panel, step up to a 10 kA or 15 kA rated MCB — the 5SL series has higher-breaking siblings. The energy limitation class is 3, meaning it limits let-through energy well enough to protect downstream wiring within its rating. The MCB carries an overvoltage category III rating and pollution degree 2 — standard for fixed-installation distribution boards. It is designed for residential buildings and infrastructure per the manufacturer's suitability designation. The product designation follows EN 61346-2 and IEC 81346-2 function code F (protective device).","metaTitle":"Siemens 5SL6220-6 SENTRON MCB, 2P B-Curve 20A 6kA","metaDescription":"Siemens 5SL6220-6 SENTRON 2-pole miniature circuit breaker, B-curve, 20 A rated, 6 kA breaking capacity per EN 60898. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL6220-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 2-pole, B, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"20 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","at 30 °C rated value":"20 A","at 40 °C rated value":"18.79 A","at 45 °C rated value":"18.4 A","at 55 °C rated value":"16.8 A","Energy Limitation Class":"3","according to EN 61346-2":"F","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"6 kA","Type Of Voltage Of The Operating Voltage":"AC","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"2.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/271a7262e60aa92c66d3dffe83109b41.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=493882&mlfb=5SL6220-6"},"ai":{"faq":[{"question":"Where can I buy the 5SL6220-6 and what is the lead time?","answer":"The 5SL6220-6 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the 5SL6220-6's depth and width?","answer":"Depth is 76 mm and width is 36 mm (2 modular width units), with a height of 90 mm. Installation depth is 70 mm."},{"question":"Will the 5SL6220-6 drop into a panel specified around the 5SL4363-7?","answer":"Both are 2-pole SENTRON MCBs on the same DIN-rail footprint (36 mm wide, 2 MW units), so they share the same mechanical envelope. The difference is in rating and characteristic: the 5SL6220-6 is a 20 A B-curve, while the 5SL4363-7 is a different rating/curve — verify the circuit's load and coordination requirements before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6220-6","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SL6220-6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}